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Finding the Fourth Proportional to 80,874.57, 111,605.39 and 45,063.81

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Solution

The fourth proportional to 80,874.57, 111,605.39 and 45,063.81 is: 62,187.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,874.57 : 111,605.39 = 45,063.81 : x
  2. Step 2: Convert to fraction form
    80,874.57/111,605.39 = 45,063.81/x
  3. Step 3: Cross multiply
    80,874.57x = 111,605.39 × 45,063.81
  4. Step 4: Simplify right side
    80,874.57x = 5,029,364,089.94
  5. Step 5: Solve for x
    x = 5,029,364,089.94/80,874.57
  6. Step 6: Final answer
    x = 62,187.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.